Bible Dictionaries
Electro-Chronograph

Webster's Dictionary

(n.) An instrument for obtaining an accurate record of the time at which any observed phenomenon occurs, or of its duration. It has an electro-magnetic register connected with a clock. See Chronograph.

Bibliography Information
Webster, Noah. Entry for 'Electro-Chronograph'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/electro-chronograph.html. 1828.